This publication is intended for IBM and customer system engineers, systemplanners, system programmers and network administrators who need to knowhow to customize the 3174 WAN communications functions, with an emphasison 3174 frame relay and remote bridging communications functions. Itrelates the customization responses to the various IBM products that existin the same frame relay network with the 3174: 3745/NCP V7, 6611/MPNP,RouteXpander/2, 3172 and AS/400.